Draft-rigging.



No. 851,246. PATENTBD APR. 23, 1907.' J. o. NBIKIRK.

DRAFT RIGGING.

APPLICATIGN FILED JULY16 1906.

3 SHEETS-SHEET 1.

PATENTED APR. 23, 1907.

J. O. NIKIRK. DRAFT RIGGING.

APPLIOATION HLED JULY 1G. 1906.

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DHAFTWREGGlN-L Specication of Letters Patent.

Patented April 23.93, 196'?.

Application filed July lLBQILQOB.' Serial No. SZGAlQ.

'.To all whom t may concern:

Be it known that I, `JOHN OSCAR N EIKIRK, a citizen 'of theUnitedStates, residing at Chicago, in the county of. Cook and State ofIllinois, have invented certain new andv use- -fl11 .Im` rovements inDraft-Rigging, of

' Incarr which t e following is a specification.

My invention relates to draft ri ging L adapted to be -used in anyusualform o rail- `way. car; and has as an o ect the sim lification of theconstruction of such evices, whereby reat strength and durabilityissecuied and the possibilit of the parts of the device becoming dissemled or broken is decreased.

My invention further relates to the details of construction hereinafterdescribed and.

claimed; and illustrated in the accompanying drawings, in which- Figure1 is a lan of the device with the supporting mem ers shown broken away;Fig. 2', a section ofthe device taken upon the line'2` of Fig. l showingthe means of attachdevice taken upon the line 3 ofFig. 1; Fig. 4, aperspective drawing of the spring-seat Fig. 5, a sectional elevation ofa referred modiiication of my invention 5 and *'ig. 6, a,

detail sectional view, `taken upon the line 6 of Fig. 5.

` g out my invention--as shown in Fig. i* provide the Slotteddraft-beams b ortedjat one end upon the bolster c and supp1 I at t eother upon the'end sill d. Extending horizontally through the slots e,f, g and h, in said draft-beams, are the metal keys t and j havingsecured between them the usual twin sprin s c and l, by means of thespring-seats m and n, which are provided with the slots o and p" intowhich the said keys closely iit.

In. the usual manner I provide the inclosing yoke gsecured at one end tothe draft-bar r' and so arranged that the spring seats m and n iitsnugly. against its inner shoulders at each end.

In Figs. 5 and 6 i haveshown a preferred modiiication in which the.similar draftbeams, one only of which is shown, areprovided withmetallic braces s upon their inner faces, such braces being providedwith slots registering with the previouslymentioned slots e, f, g andhin -the draft-beams. `The Vbrace here illustratedgisdprovided at itsfor ward end with an upwa'r y extending shoul- -der t adapted to en agethe end sill d in such manner that the 'orward thrust 'uponthe bracewill be directly communicated with the end sill, and at its rearward endwith the broadened portion u adaptedto abut against the bolster todirectly communicate rearward thrustupon the draw-bar through the saidbrace to the bolster. This brace is also provided with extensions oforming an inner casing for the portion of the slots upon which the keysare adapted to slide-and alsoforming solid shoulders for the keys,whereby the pull or thrust upon such keys is communicated directly tothe end sill or the bolster, as the case may be. cured -to thedraft-beams by a plurality of bolts w which extend through thedraftbeams.

When the draft-bar 'r isplaced under tensionfrom the draft-bar of theadjacent `car suiiicent to overcome the normal force of the springs cand l, the key j is caused to slide forward in the slots g and 7L andthe rearward end of the draw-bar is caused to slide away from itscontactwith the forward spring seat m. When the draft-bar isundercompression suflioi'ent to deflect the springs k and l, the key i'is caused to slide rearwardly in the slots e andf and the inner face ofthe yoke g is forced from its contact with the spring. s eat n at thepoint It will be noted that by this construction the strain, whether itbe tension or compres sion, falls directly, through the medium of thekeys, upon the extreme faces of the rojections o of the brace s on theinterior o the l'slots c, f, g'and h, thus applying the-force throughthe medium of suclibraces to the draft-beams to which the braces aretightly secured bythe bolts w, and thence to the end sill and bolster.The braces, however, are so shaped as to also directly apply the forceexerted upon them through their abutting end,

the end sill and bolsters, thus furnishing very positive `and rigidstructure. between the keys and the car body.

In this speciiication only such parts oi the illustrationhave beendescribed asit is thou ht necessary to clearly disclose the inventionand to enable it to be practiced by those skilled in the art, and it isto be understood that certain arts herein sh own and described may be ofot er form without departing from the scope of. my invention. lf cla1m:l.; ln a draft-rigging for railway cars, the

combination with an: end sill and bolster,

This brace is also rigidly se- ICO IXO

slotted'draft-beams, ,braces secured to such beams andabutting the endsill and bolster and having slots therein registering with the slots inthe draft-beams, keys mounted between the draft-beams and extending intothe'slots therein, a spring between said keys, a coupler, and means forconnecting the keys to the coupler.

2.' In a draft-rigging for railway cars,` the combination of slotteddraft-beams, keys movably supported in such slots, metallic brace platessecured to the draft-beams and abutting the end sill and bolster,portions thereon extending into such slots and formn ing shoulderstherein against which said keys normally abut, a coupler, and means, fortransmitting the thrust up'onsuch coupler to such shoulders.

3. In a draftrigging for railway cars, the

combination of slotted draft-beams, keys movably supported within saidslots, metallic brace plates secured to the draft-beams and abutting theend sill and bolster, portions thereo extending into such slots andforming shoulders and wear plates for such keys, means for normallyforcing the keys against such shoulders, and means for normallyconnecting the keys to a coupler.

4. In a draft rigging for railway cars the combination with an end silland bolster of, slotted draft beams; keys supported by the draft beamshaving sliding movement in the slots, a coupler, a yoke secured to thecoupler and embracing the keys, a spring between the keys and within theyoke and slotted brace plates secured to the draft beams, said braceplates having at their forward ends portions abutting adjacent sides ofthe end sill and attheir rearward ends portions abutting the bolster.

5. ln a draft rigging for railway cars, the combination with end silland bolster, of slotted draft beams secured thereto, slotted metallicbrace plates secured to the draft beams and formed with portionsextending into the slots in the draft beams. and upwardly extending endportions abutting the end sill and bolster, keys carried by the braceplates and having sliding movement in the slots therein, a coupler, ayoke secured to the coupler and embracing the keys, spring seats esrsecured to the keys within the yoke, and a Y spring between such springseats.

JOHN OSCAR NEIKIRK. Witnesses CLIFFORD C. BRADBURY, JENNIE A. MACEDWARD.

